<template>
    <div class="recommend" ref="recommend">
        <scroll ref="scroll" class="recommend-content" :data="discList">
            <div>
                <div v-if="recommends.length" class="slider-wrapper" ref="sliderWrapper">
                    <slider>
                        <div v-for="item in recommends">
                            <a :href="item.linkUrl">
                                <img class="needsclick" @load="loadImage" :src="item.picUrl">
                            </a>
                        </div>
                    </slider>
                </div>
                <div class="recommend-list">
                    <h1 class="list-title">热门歌单推荐</h1>
                    <ul>
                        <li @click="selectItem(item)" v-for="item in discList" class="item">
                            <div class="icon">
                                <img width="60" height="60" v-lazy="item.imgurl">
                            </div>
                            <div class="text">
                                <h2 class="name" v-html="item.creator.name"></h2>
                                <p class="desc" v-html="item.dissname"></p>
                            </div>
                        </li>
                    </ul>
                </div>
            </div>
            <div class="loading-container" v-show="!discList.length">
                <loading></loading>
            </div>
        </scroll>
        <router-view></router-view>
    </div>
</template>

<script type="text/ecmascript-6">
import Slider from 'base/slider/slider'
import Loading from 'base/loading/loading'
import Scroll from 'base/scroll/scroll'
import { getRecommend, getDiscList } from 'api/recommend'
import { playlistMixin } from 'common/js/mixin'
import { ERR_OK } from 'api/config'
import { mapMutations } from 'vuex'

export default {
    mixins: [playlistMixin],
    data() {
        return {
            recommends: [],
            discList: []
        }
    },
    created() {
        this._getRecommend()

        this._getDiscList()
    },
    methods: {
        handlePlaylist(playlist) {
            const bottom = playlist.length > 0 ? '60px' : ''

            this.$refs.recommend.style.bottom = bottom
            this.$refs.scroll.refresh()
        },
        loadImage() {
            if (!this.checkloaded) {
                this.checkloaded = true
                this.$refs.scroll.refresh()
            }
        },
        selectItem(item) {
            this.$router.push({
                path: `/recommend/${item.dissid}`
            })
            this.setDisc(item)
        },
        _getRecommend() {
            getRecommend().then((res) => {
                if (res.code === ERR_OK) {
                    this.recommends = res.data.slider
                }
            })
        },
        _getDiscList() {
            getDiscList().then((res) => {
                if (res.code === ERR_OK) {
                    this.discList = res.data.list
                }
            })
        },
        ...mapMutations({
            setDisc: 'SET_DISC'
        })
    },
    components: {
        Slider,
        Loading,
        Scroll
    }
}
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
    @import "~common/stylus/variable"

    .recommend
        position: fixed
        width: 100%
        top: 88px
        bottom: 0
        .recommend-content
            height: 100%
            overflow: hidden
            .slider-wrapper
                position: relative
                width: 100%
                overflow: hidden
            .recommend-list
                .list-title
                    height: 65px
                    line-height: 65px
                    text-align: center
                    font-size: $font-size-medium
                    color: $color-theme
                .item
                    display: flex
                    box-sizing: border-box
                    align-items: center
                    padding: 0 20px 20px 20px
                    .icon
                        flex: 0 0 60px
                        width: 60px
                        padding-right: 20px
                    .text
                        display: flex
                        flex-direction: column
                        justify-content: center
                        flex: 1
                        line-height: 20px
                        overflow: hidden
                        font-size: $font-size-medium
                    .name
                        margin-bottom: 10px
                        color: $color-text
                    .desc
                        color: $color-text-d
        .loading-container
            position: absolute
            width: 100%
            top: 50%
            transform: translateY(-50%)
</style>